diff --git a/net/iob/iob_alloc_qentry.c b/net/iob/iob_alloc_qentry.c
index 04f076bc4e8..2aab1e6353b 100644
--- a/net/iob/iob_alloc_qentry.c
+++ b/net/iob/iob_alloc_qentry.c
@@ -146,7 +146,7 @@ static FAR struct iob_qentry_s *iob_allocwait_qentry(void)
                * complete the allocation without losing our count.
                */
 
-              sem_post(sem);
+              sem_post(&g_qentry_sem);
             }
         }
     }